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August 30, 2014

August 30, 2014

Posted by **LILY** on Monday, February 18, 2008 at 2:19pm.

- math :] 2 -
**Reiny**, Monday, February 18, 2008 at 2:28pmnothing to be confused about.

Your calculator has a build-in function which rounds off the last decimal it can display, that's why it shows up as a 7

When you do a long division, the way it was taught to you in earlier grades, the 6 will keep on repeating forever.

- math :] 2 -
**LILY**, Monday, February 18, 2008 at 2:33pmSo is it a national number or what?

- math :] 2 -
- math :] 2 -
**Damon**, Monday, February 18, 2008 at 7:43pmAh, not to beat a dead horse here but let's make sure the cart is before that horse. The real point is that 14/3 is a RATIO of whole numbers as Reiny capitalized.

That is what makes it a rational number.

The fact that it is a repeating decimal means that it can be written as a ratio, and therefore is rational.

In other words

If ratio, then rational

If repeating decimal, then ratio

Therefore

If repeating decimal, then rational

I suspect shortly you will be shown how to find the ratio that corresponds to any repeating decimal.

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